Operating-handle for combination-locks.



Patanted Aug. I, I899.

A. G. JACOBS. 1 OPERATING HANDLE FOR COMBINATION LDGKS. 4

filed Jan. 18, 1899.)

pplication (No Model.)

11V VE N T OR c2 Allor'nej extent'as an indicator of-position, r

w 'r i' 111 neon.

AUGUSTUS G. JAcoBs, OFJONESTOWN, MISSISSIPPI.

e enaarine eaa l... .l-U a coin inarlon' ncits.

- EPEGIFIGEMEIUN forming part of Letters Patent No. 829,999, dated August 1 1899. 'i a pease filed January 18,1899. seen No. 702,016. on than.)

To all whom it may concern:

Be it known that ll, AUGUSTUS G. J AOOBS, a citizen of the United States, residing at Jonestown, in the county of Coahoma and State of Mississippi, have invented certaih new and useful Improvements in Operating-Handles for Combination-Locks, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to operating-handles for permutation locks.

' The object of the invention is to produce an elastic handle or operating piece which may be applied to the metallic knob of a permutation lock and serve not only as a handgrasp to operate the knob, but alsoto some Figure 1 is a vertical section showing cap or handle applied to a knob. Fig.2 is a side elevation of the same. Fig. 3 is a front view of cap or handle as applied to the knob of a permutatiomlock. Fig. 4 is a perspective of the cap'and handle.

As is well-known, the combination of permutation-locks on the doors of safes are gen-' erally operated by a spindle with a metallic knob at the outer end.'. Such a knob often alfords not a very firm hand-grasp, and should the lock not work easily the hand of the operator may slip on the knob. Considerable care is required in making the turns and re-- versa'ls or the knob may be turned too far, necessitating the repetition of the operation of unlocking. The flexible or elastic ap or operating-handle of this invention m hy' be quickly applied to such a knob and when ap plied affords; a convenient means for operat ing the combination in opening'th lockp A indicates a rubber cup' or cap having a recess or opening B approximating the size' and form of the operating-knoiiKof'apermutation-lock. As mostof the safe-locks in use are manufactured by a few manufacture" ers and as each manufacturer makes but a few varieties, not more than abou't'three or four caps or cups A will be required to fitjthe knobs of a very large number of safes-uowin use.

The cap or cup A'is made, preferably, of rubber or of rubber with fiber embedded therein, so as to have considerable strength and ciently strone: grasp upon some elasticity. I The edge 0 of the ca or cup is drawn in, so as to clasp and secure the cap f on the knob when applied thereto, the elasticity of the material enabling the cup to expand sufiiciently to pass over the knob when the cup or cap is applied to the knob. cup or cap'W-hen applied to the knob will be retained therein by the elasticity of the materiaLl w The i r p 3 6e A crank or handle D projects from one side of the cap or cup A. This crank or handgrasp is integral with the cup A, but may have a stiffening-corset metal or other material. This crank affords a handle, by taking hold of which the knob K may be turned. Theelastic cup A tightly grasps the knob K,

" and there is little tendency for cup or 'c'ap'to slip on'the' knob. As the handle or crank D is eccentric to the body A, any side pressure on the crank tends to cramp and bind the cupA on the knob, sothat a turning of the crank Djcauses the knob to turn.

.Th'e crank or handle D should preferably p 75 or index, and thus serves as an indicator to" be applied opposite the zero-point of the scale denote the position for reversal. of the spindle in working the combination of the look.

I am aware that metallic crank-handles have been made'forapplication to the knob of a permutation-lock. Such are generally cumbersome and are liable to injure the plating or finish of the knob. My 'rubbercu'p' does not injure the metal finish, can be easily Y removed and replaced, and affords asuflipurpose indicated. I The inner surface or the ornamented in any suitable way. The cup can be madefovera collapsible core or in other the knob'for' the cup Amaybe' notched orjcheck'ered "and the'outer'surface I manner common in the art of,working in rubher and similar-plastic material. L

1. Au operating-handle for application to the knobs of safes, &c;, consisting of an elastic cup or cap to inclosesaid knob, and a crank or hand-grasp integralwith said cap or cup. w t

2. The operating-handle described, having a crank or hand-grasp integral with the rubber cap or cup adapted to close over a knob,

- I the interior of said rubber cup beingrough- In testimony whereof I aflix my signature cued, substantially as described. 3. in presence of two witnesses. Y 3. Th6'1l1bb61 cup A having its inner surface roughened and the crank D projecting 5 from the side of said cup, said crank having Witnesses:

, a. strengthening-core, substantially as de- W. T. HARRIS, 1 scribed v H.- O. MCALISTER.

AUGUSTUS G. JACOBS. 

